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Where Clause and XDT:Untyped Issues

Michael Kay mike at saxonica.com
Sat Feb 2 09:57:37 PST 2008


  Where Clause and XDT:Untyped Issues
You haven't shown the source document so it's difficult to diagnose. The
only thing that makes me nervous about your code is that you first do
 
distinct-values($ad)
 
which atomizes items in $ad, and then you do
 
contains($ad/head,'Baseball')
 
which looks for children of items in $ad. It's unusual to atomize something
that has children, which makes me suspicious.
 
Michael Kay
http://www.saxonica.com/


  _____  

From: http://x-query.com/mailman/listinfo/talk [mailto:http://x-query.com/mailman/listinfo/talk] On Behalf
Of Wei, Alice J.
Sent: 01 February 2008 22:31
To: http://x-query.com/mailman/listinfo/talk
Subject:  Where Clause and XDT:Untyped Issues



Hi, 

 

   I believe I have been passing this question through, but I think my main
question about not been able to put in a where clause in my XQuery after my
second let statement has been declared. In return, I receive all retrieved
results is the issue.

 

 The code below has been modified from one of the members' inspirations.
Apparently, no matter what I do, it appears that the where clause in the
$sorted_result has never been taken into the output generation. When
executed the script, it gives me back everything, whether or not the word
"baseball" was in the head. I have 197 distinct values in my list. 

 

let $ad := fn:collection("xmldb:exist://db/my")//ad

let $sorted_result:=

for $doc in distinct-values($ad)

where contains($ad/head,'Baseball')   

order by $doc

return $doc

for $r at $count in $sorted_result

let $nodes := $ad[. = $r]

return

<ad>

<statistics>

Showing Result: {$count} / {count($sorted_result)}

</statistics>

{$nodes}

</ad>

 

What I want here is just something simple, I want to be able to put in some
form of where clause so I can eliminate more of my current result output. 

 

Any hints on this would be appreciated.

 

======================================================

Alice Wei

MIS 2008

School of Library and Information Science

 Indiana University Bloomington 

http://x-query.com/mailman/listinfo/talk

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